Question # 1

When a body is lifted through a height the work done on its appears in the form of its:

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Kinetic energy

Potential energy

Elastic potential energy

Geothermal energy

The unit of work is :

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J

N

Ns

m

hp stands for :

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1w

Horse power

Joule

All are true

Kinetic and potential energy are the kinds of energy:

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Chemical

Nuclear

Light

Mechanical

Formula of Power:

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P = wt

P = w/t

P = t/w

P = w/t²

In which of the following state molecules don not leave their position?

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Solid

Liquid

Gas

Plasma

_____________ can neither be created nor be destroyed.

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Light

Force

Energy

Weight

According to law of conservation of energy increases K.E is equal to:

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Increase P.E

Decrease P.E

Decrease K.E

None of these

One Megawatt is equal to :

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1 × 106 w

1 × 102 kw

1015 w

Nil

Energy cannot be destroyed however it can be converted into some other forms. This is known as:

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Law of heat exchange

Law of conservation of energy

Law of conservation of momentum

None of these

A body possesses if it is capable to do work:

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Energy

Power

Force

All

The S.I unit of power is:

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Newton

Watt

Joule

Coulomb

SI unit of work is:

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Joule

Coulomb

Ampere

Kelvin

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